Sled



FIG. 1 is a side perspective view of a sled showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an enlarged front perspective view thereof;

FIG. 4 is an enlarged rear perspective view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a sled, substantially as shown. 